The "14 Karat Yellow Gold Double Piercing Heart Outline and Round Clear CZ Screw Back Earrings" are a type of jewelry designed to be worn on the earlobe, specifically designed for double earlobe piercings. Here's a detailed description of these earrings based on the information you've provided:

Material: The earrings are crafted from 14 karat yellow gold, signifying that they are made from a gold alloy containing 58.3% pure gold (14 out of 24 parts), mixed with other metals to enhance durability and strength.

Design: These earrings feature a unique design involving heart outline and round clear cubic zirconia (CZ) gemstones. The combination of heart and round shapes adds an interesting and visually appealing contrast to the earrings.